package cn.lingyueblog.gulimall.product.service.impl;

import cn.lingyueblog.common.to.SkuReductionTo;
import cn.lingyueblog.common.to.SpuBoundTo;
import cn.lingyueblog.common.utils.PageUtils;
import cn.lingyueblog.common.utils.Query;
import cn.lingyueblog.common.utils.R;
import cn.lingyueblog.gulimall.product.entity.*;
import cn.lingyueblog.gulimall.product.feign.CouponFeignService;
import cn.lingyueblog.gulimall.product.service.*;
import cn.lingyueblog.gulimall.product.vo.*;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import java.util.stream.Stream;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;

import cn.lingyueblog.gulimall.product.dao.SpuInfoDao;
import org.springframework.transaction.annotation.Transactional;


@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

    @Autowired
    private SpuInfoDescService spuInfoDescService;
    @Autowired
    private SpuImagesService imagesService;
    @Autowired
    private AttrService attrService;
    @Autowired
    private ProductAttrValueService attrValueService;
    @Autowired
    private SkuInfoService skuInfoService;
    @Autowired
    private SkuImagesService skuImagesService;
    @Autowired
    private SkuSaleAttrValueService skuSaleAttrValueService;
    @Autowired
    private CouponFeignService couponFeignService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<SpuInfoEntity>()
        );

        return new PageUtils(page);
    }

    /**
     * TODO:高级部分完善各种保存失败逻辑
     * 保存Spu基本信息
     * @param spuInfoVo
     */
    @Transactional
    @Override
    public void saveSpuInfo(SpuSaveVo spuInfoVo) {
        //1. 保存spu基本信息：pms_spu_info
        SpuInfoEntity infoEntity = new SpuInfoEntity();
        //缺少 private Date createTime 和 updateTime;
        BeanUtils.copyProperties(spuInfoVo,infoEntity);
        infoEntity.setCreateTime(new Date());
        infoEntity.setUpdateTime(new Date());
        this.saveBaseSpuInfo(infoEntity);
        //2. 保存spu的描述图片：pms_spu_info_desc
        List<String> decript = spuInfoVo.getDecript();
        SpuInfoDescEntity descEntity = new SpuInfoDescEntity();
        descEntity.setSpuId(infoEntity.getId());
        descEntity.setDecript(String.join(",",decript));
        spuInfoDescService.saveSpuInfoDesc(descEntity);
        //3. 保存spu的图片集：pms_spu_images
        List<String> images = spuInfoVo.getImages();
        imagesService.saveImages(infoEntity.getId(),images);
        //4. 保存spu的规格参数：pms_product_attr_value
        List<BaseAttrs> baseAttrs = spuInfoVo.getBaseAttrs();
        List<ProductAttrValueEntity> collect = baseAttrs.stream().map(attr -> {
            ProductAttrValueEntity valueEntity = new ProductAttrValueEntity();
            valueEntity.setAttrId(attr.getAttrId());
            AttrEntity id = attrService.getById(attr.getAttrId());
            valueEntity.setAttrName(id.getAttrName());
            valueEntity.setAttrValue(attr.getAttrValues());
            valueEntity.setQuickShow(attr.getShowDesc());
            valueEntity.setSpuId(infoEntity.getId());
            return valueEntity;
        }).collect(Collectors.toList());
        attrValueService.saveProductAttr(collect);
        //5. 保存spu的积分信息：gulimall_sms--->sms_spu_bounds
        Bounds bounds = spuInfoVo.getBounds();
        SpuBoundTo spuBoundTo = new SpuBoundTo();
        BeanUtils.copyProperties(infoEntity,spuBoundTo);
        spuBoundTo.setSpuId(infoEntity.getId());
        R r = couponFeignService.saveSpuBounds(spuBoundTo);
        if(r.getCode() != 0){
            log.error("远程保存spu积分信息失败");
        }


        //6. 保存当前spu对应的所有sku信息：pms_sku_info
        //6.1） sku的基本信息:pms_sku_info
        List<Skus> skus = spuInfoVo.getSkus();
        if(skus!=null && skus.size()>0){
            skus.forEach(item -> {
                String defaultImg = "";
                for(Images image : item.getImages()){
                    if(image.getDefaultImg() == 1){
                        defaultImg = image.getImgUrl();
                    }
                }

                SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
                BeanUtils.copyProperties(item,skuInfoEntity);
                skuInfoEntity.setBrandId(infoEntity.getBrandId());
                skuInfoEntity.setCatalogId(infoEntity.getCatalogId());
                skuInfoEntity.setSaleCount(0L);
                skuInfoEntity.setSpuId(infoEntity.getId());
                skuInfoEntity.setSkuDefaultImg(defaultImg);
                skuInfoService.saveSkuInfo(skuInfoEntity);

                Long skuId = skuInfoEntity.getSkuId();

                List<SkuImagesEntity> imagesEntities = item.getImages().stream().map(img -> {
                    SkuImagesEntity skuImagesEntity = new SkuImagesEntity();
                    skuImagesEntity.setSkuId(skuId);
                    skuImagesEntity.setImgUrl(img.getImgUrl());
                    skuImagesEntity.setDefaultImg(img.getDefaultImg());
                    return skuImagesEntity;
                }).filter(entity->{
                    //返回true就是需要，false就是剔除
                    return !StringUtils.isEmpty(entity.getImgUrl());
                }).collect(Collectors.toList());
                //6.2） sku的图片信息：pms_sku_images
                //TODO:没有图片路径信息的不用保存
                skuImagesService.saveBatch(imagesEntities);
                //6.3） sku的销售属性：pms_sku_sale_attr_value
                List<Attr> attr = item.getAttr();
                List<SkuSaleAttrValueEntity> skuSaleAttrValueEntities = attr.stream().map(a -> {
                    SkuSaleAttrValueEntity attrValueEntity = new SkuSaleAttrValueEntity();
                    BeanUtils.copyProperties(a, attrValueEntity);
                    attrValueEntity.setSkuId(skuId);

                    return attrValueEntity;
                }).collect(Collectors.toList());
                skuSaleAttrValueService.saveBatch(skuSaleAttrValueEntities);
                //6.4） sku的优惠、满减等信息：gulimall_sms--->sms_sku_ladder、sms_sku_full_reduction、sms_member_price
                SkuReductionTo skuReductionTo = new SkuReductionTo();
                BeanUtils.copyProperties(item,skuReductionTo);
                skuReductionTo.setSkuId(skuId);
                if(skuReductionTo.getFullCount()>0 || skuReductionTo.getFullPrice().compareTo(new BigDecimal("0"))==1){
                    R r1 = couponFeignService.saveSkuReduction(skuReductionTo);
                    if(r1.getCode() != 0){
                        log.error("远程保存sku优惠信息失败");
                    }
                }
            });
        }


    }

    @Override
    public void saveBaseSpuInfo(SpuInfoEntity infoEntity) {
        this.baseMapper.insert(infoEntity);
    }


    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
        QueryWrapper<SpuInfoEntity> wrapper = new QueryWrapper<SpuInfoEntity>();

        String key = (String) params.get("key");
        if(!StringUtils.isEmpty(key)){
            // status = 1 and (id = 1 or spu_name like xxx)
            // 括号就是这里的and
            wrapper.and(w->{
                w.eq("id",key).or().like("spu_name",key);
            });
        }

        String status = (String) params.get("status");
        if(!StringUtils.isEmpty(status)){
            wrapper.eq("publish_status",status);
        }

        String brandId = (String) params.get("brandId");
        if(!StringUtils.isEmpty(brandId)  && !"0".equalsIgnoreCase(brandId)){
            wrapper.eq("brand_id",brandId);
        }

        String catalogId = (String) params.get("catelogId");
        if(!StringUtils.isEmpty(catalogId)  && !"0".equalsIgnoreCase(catalogId)){
            wrapper.eq("catalog_id",catalogId);
        }

        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                wrapper
        );

        return new PageUtils(page);
    }


}